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-rw-r--r--src/libstd/build.rs1
1 files changed, 0 insertions, 1 deletions
diff --git a/src/libstd/build.rs b/src/libstd/build.rs
index 58fb6fda19a..eb2753d6245 100644
--- a/src/libstd/build.rs
+++ b/src/libstd/build.rs
@@ -87,5 +87,4 @@ fn main() {
         println!("cargo:rustc-cfg=feature=\"restricted-std\"");
     }
     println!("cargo:rustc-env=STD_ENV_ARCH={}", env::var("CARGO_CFG_TARGET_ARCH").unwrap());
-    println!("cargo:rustc-cfg=backtrace_in_libstd");
 }